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02-06-2017
Chemistry

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An HCl solution has a concentration of 9.8 x 10-5 M. What is the pH of this solution?

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dec77cat dec77cat

02-06-2017

HCl = H⁺ + Cl⁻

c(HCl)=9.8*10⁻⁵ mol/l

pH=-lg[H⁺]

[H⁺]=c(HCl)

pH=-lg{c(HCl)}

pH=-lg{9.8*10⁻⁵}=4.009

pH=4.009

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